Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Billions of neutrinos pass unnoticed through your body every second.
6
One cubic foot of gold weighs more than 1,200 pounds!
78
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Sound travels about 4 times faster in water than in air.
408
The average home creates more pollution than does the average car.
33
One barrel of petroleum holds 42 gallons.
20